Business semantics “Just insert the data!” has a very different meaning depending on your field, and it is sometimes frustrating to get the proper behavior from your DataBase Management System (DBMS). For example, in investment banking, you may want to keep all the versions and have (partial) duplicates, whereas, in manufacturing, duplicates may be undesired. […]
This blog post has been co-authored with Marc Recht from FORRS, a Quasar integration partner What is so special about trading electricity? Electricity is special. Unlike other commodities, it is very challenging to store; for most consumers, it is entirely infeasible. As such, purchasing and storing electricity in advance of demand is not viable; hedging […]
Why does it matter Maps, dictionaries, associative containers… However you name it, maps are omnipresent, but do you know how much the implementation matters? This article will go over what we, at Quasar, learned about maps and hash tables after years of squeezing every little bit of power out of our CPUs. Before we dive […]
Once upon a time In November 2017, I was invited by Andy Pavlo to give a talk at the CMU about the internals of QuasarDB. During that talk, I briefly mentioned why we don’t use memory-mapped files and why it’s generally a mistake to do this. To be clear, I only had a strong intuition, […]
Log4J is making the news because of recent major security vulnerabilities. Writing secure software is extremely hard, and logging frameworks are often overlooked as a simple, unimportant component. Any software component that parses and outputs user input needs to be considered seriously from a security standpoint. Being written in C++, Quasar does not use log4j. […]
To DBaaS or to PaaS, that is the question. That’s it! You’ve decided to run your DataBase Management System (DBMS) in the cloud, but now, you have more questions than before. IaaS? PaaS? SaaS? DBaaS? Lil NaaS? At Quasar, we do the full range of possible deployments, from databases embedded in ARM32 devices to on-premises […]
